Service providers worldwide are using Lineblocs VoIP Service Controller to provide access-facing session border applications with SIP-based feature servers. Our Lineblocs enable providers to deliver voice and other communications services to business, residential, and wireless subscribers by providing NAT traversal, packet-header manipulations, performance monitoring, and other key capabilities.

The Lineblocs also provide advanced protocol normalization, security, and registration, supporting up to 500,000 concurrent calls and 1 million SIP registrations per node. By load-balancing inbound calls for up to 64 feature servers and performing periodic subscriber registrations only as needed, the Lineblocs further minimize the load on feature servers.

Advantages of retail applications

  • Full firewall protection for CMS, Softswitches, or Feature Servers
  • Supports thousands of subscriber partitions for hosted applications
  • Firewall and Network Address Translation (NAT) traversal, near- and far-end
  • Network asset protection from denial of service attacks (DoS)
  • 500,000 concurrent calls per node
  • 3,000 Calls per Second (CPS) sustained call rate
  • Fully fault tolerant with call states maintained during failover for no lost calls
  • Protocol translation for SIP-H.323 interworking
  • Hitless upgrades and 99.999% uptime

While preventing Distributed Denial of Service (DDoS) attacks, theLineblocs hides IP network topology to safeguard resources. With the ability to write CDRs or send Radius messages for each call attempt, the Lineblocs lets managers monitor the performance (ASR and ACD) of each endpoint in real-time using an intuitive management GUI.

Using Lineblocs combined with a feature server or IP communications Application Server offers a best-of-breed approach to enhanced service delivery.